Rana Daggubati said: "We wanted the speech to be highly inspiring and emotional. It comes out of the character's strength at that crucial moment

Rana Daggubati, Kay Kay Menon and Atul Kulkarni in The Ghazi Attack

Rana Daggubati's character made a speech which made him feel patriotic

Rana Daggubati plays a fictional character on Indian submarine S21

The Ghazi Attack releases on February 17 in two languages

Rana Daggubati is all set for the The Ghazi Attack in which he plays the role of a Naval officer on Indian submarine S21 which was responsible for the mysterious sinking of PNS Ghazi during the 1971 war between India and Pakistan. Rana, 32, says that his character Lt. Commander Arjun Varma, delivers a crucial speech towards the end of the film and the actor felt "intensely patriotic" delivering those lines. Rana Daggubati told news agency IANS: "We wanted the speech to be highly inspiring and emotional. It comes out of the character's strength at that crucial moment, and I felt intensely patriotic delivering those lines. I credit the script writer for writing such brilliant, powerful and short lines, as passionate as the entire team wanted."

The Ghazi Attack, directed by Sankalp Reddy, is a bi-lingual film which will release in Hindi and Telugu on February 17. The film is co-produced by Karan Johar's Dharma Productions.

The film is based on a classified case during the Indo-Pak war in 1971 when Indian submarine S21 underwent a covert mission to destroy Pakistani submarine PNS Ghazi which aimed to destroy India's INS Vikrant and claim Visakhapatnam port.

Rana Daggubati plays the role of a fictionalized Lt.Commander and his team who remained underwater for 18 days to accomplish their mission. Talking about the underwater shoot, Rrana told IANS: "At the end of the 18th day, I was gasping for sunlight. When you haven't felt the sun on your face and you've been breathing recycled air for months, getting on the surface of water and on land is like freedom at last. How I missed the beautiful sunlight."

The Ghazi Attack also stars Taapsee Pannu, Atul Kulkarni and Kay Kay Menon, Nassar and late actor Om Puri in a pivotal roles.